This time the widely read The Economist recommends netbooks with Linux. Furthermore, the author of the article sees no point in installing Windows instead of Linux:
Yet increasing the specification only makes sense for people who want to run (and to pay for) Windows and specific Windows-based applications. The extra hardware and software costs start to push the price of a netbook towards that of a standard laptop, which will invariably be better because it has a bigger processor and superior graphics. For many users, the basic, free software shipped with a netbook will be quite enough.